Growing pains: understanding sibling rivalry

Brothers and sisters, like cats and dogs, can be sworn enemies. But researchers are now questioning if the constant bickering could be cause for concern or just growing pains.

A new study from the University of Queensland has confirmed that families see sibling rivalry as normal behaviour, but found many parents were concerned about the conflict between their children.

Parents across Queensland were engaged as part of the research from UQ's Parenting and Family Support Centre which looked specifically at sibling conflict and rivalry.

The survey asked participants a range of questions around how well their children got along and whether siblings had experienced any form of conflict in their relationships.

UQ researcher John Pickering says the research showed that three out of four parents surveyed are concerned about their children fighting yet claim their kids get along well.

"This idea of sibling conflict and rivalry is conceptualised as a normal part of the sibling relationship," he said.

"The issue with that however is that there is a growing body of research which shows that early sibling aggression is linked with a range of adverse outcomes for adolescents and adults as we go through life, particularly on mental health."

Mr Pickering says parents' concerns outlined in the UQ study were matched by international research showing that early sibling aggression, when not dealt with, can lead to ongoing learning, social and mental health problems.

"The sibling relationship is probably the longest relationship that people are likely have; you'll outlive the relationship with your parents, so it's a very important one," he said.

Mr Pickering says the effect that the conflict can have is equal to bullying in certain circumstances.

The findings are part of a wider, ongoing study that is a world-first trial of the Triple P - Positive Parenting Program in managing sibling conflict.

Parents seeking help to manage their children's fighting, aggression, anger or hostility towards each other can participate in the program free of charge.

"A normal amount of rough and tumble play is important for development, [however] when it's at a point where it becomes dangerous, ongoing, repetitive and could lead to some harm for one or more of the siblings... that's when it becomes an issue," Mr Pickering said.